diff --git a/third_party/pigweed b/third_party/pigweed
index de62a2d..3839477 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit de62a2de159d920d2b19ca414b4d41681310789e
+Subproject commit 3839477fad5af9e02d6176d2c402caacaa9b1ff1